From my personal tests around tier 13 4pc bonus and FR:
- party/raid seems to receive hp bonus of 15% of bears max hp (not their current max hp) - need confirmation on this
- debuff remains on raid for its duration even if you shift out of bear, outrange raid members or change realms (like by using Heroic Will on Ultraxion)

That would make stamina trinkets worth considering for fights when you expect your raid cd being used in rotation (most fights I believe). Also would make cat-forced-to-bear-for-15s nonglyphed version significantly weaker (I believe you still gain +30% extra healing from glyphed one).

Confirming the healing nerf after looking at my logs:

Thursday - WOL Search for Mass/Frenzied Regen - Thursday
[19:12:11.368] Xenoborg Frenzied Regeneration Xenoborg +9521
[19:12:11.666] Xenoborg Mass Regeneration Tarkin +4760

Sunday - WOL Search for Mass/Frenzied Regen - Sunday
[20:12:51.613] Xenoborg Frenzied Regeneration Xenoborg +8574
[20:12:51.802] Xenoborg Mass Regeneration Kobrakai +2143

When I get home I'll test the theory that the health buff is 50% of the health gained by the bear (Seems very likely based on the limited data I have with me) and whether or not the healing bonus with the glyph was changed.

Another minor note looking at logs: mass regeneration can crit based on your spell crit and it benefits from things that increase healing received like demon armor and nurturing instinct.

I hate to do this but since I can't test myself I have a list of questions I need other people to answer about the 4pc bonus so that we can consolidate all of the information we have. If you can provide screenshots or logs as evidence of your answers that would be great, but unless someone contradicts you I'll take your word for it.

1. When you cast Frenzied Regen a separate buff called Mass Regeneration is applied to the raid, correct?
2. If you then swap to cat form do you get a Mass Regen buff on yourself or do you lose all benefits?
3. Are there any notable limitations to how the buff is applied, such as range, different phases, etc.?
4. What happens if you cast Frenzied Regen while you still have the debuff from shifting into bear form?
5. The current consensus seems to be that the health buff applied to raid members is 15% of the bear's max hp, is this accurate?
6. Additionally, temporary health buffs such as Power Word: Fortitude and Rallying Cry increase the Mass Regen health buff, correct?
7. What happens if temporary health buffs are gained or lost after Mass Regen has been applied, on either the bear or the other raid members?
8. If Frenzied Regen is glyphed then raid members gain 15% healing taken with Mass Regen, correct?
9. If Frenzied Regen is not glyphed then raid members are healed for 1.5% of the bear's max hp every second, correct?
10. Does this healing depend on whether or not the bear who used Frenzied Regen has rage?
11. Does this healing continue to work if the bear changes form, dies, enters a different phase, etc.?
12. This healing can crit and also benefits from talents and abilities that increase healing taken, correct?

That's everything I can think of for now, thank you to everyone who helps out with testing the bonus.

1. When you cast Frenzied Regen a separate buff called Mass Regeneration is applied to the raid, correct?
Yes, spell ID here :Mass Regeneration - Spell - World of Warcraft

2. If you then swap to cat form do you get a Mass Regen buff on yourself or do you lose all benefits?
You lose all benefits, the raid continues to have the benefits. They won't get healing, but still get the increased healing taken.

3. Are there any notable limitations to how the buff is applied, such as range, different phases, etc.?
The spell data from above indicates range to be 100y.

4. What happens if you cast Frenzied Regen while you still have the debuff from shifting into bear form?
You get the normal effects as if you did not have the 4pc.

5. The current consensus seems to be that the health buff applied to raid members is 15% of the bear's max hp, is this accurate?
Yes, regardless of buffs on yourself or raid member it takes a snapshot of your health increase at cast and gives half of that to the raid.
6. Additionally, temporary health buffs such as Power Word: Fortitude and Rallying Cry increase the Mass Regen health buff, correct?
Yes, they increased both the health given and the healing done by mass regeneration ticks in proportion with the tanks increased health.

7. What happens if temporary health buffs are gained or lost after Mass Regen has been applied, on either the bear or the other raid members?
Losing a health buff mid regen (I click off my mark of the wild) reduced healing tics to their new expected value. It did not reduce the health bonus.

8. If Frenzied Regen is glyphed then raid members gain 15% healing taken with Mass Regen, correct?
It still gives a 30% increase to healing received.
Testing with a priest using desperate prayer, which heals for a set 30% of current max health (+6% and +12% from other priest talents)
Before, 142k, healed for 50.57k
After, 177k healed for 82.0k (That is 63.04 from new max health + 30% healing bonus for mass regen)

9. If Frenzied Regen is not glyphed then raid members are healed for 1.5% of the bear's max hp every second, correct?
After the nerf, it is now 0.75% of the bears max health a second, if 10 rage is consumed (0.075% per rage consumed). As seen 2 posts previous.

10. Does this healing depend on whether or not the bear who used Frenzied Regen has rage?
Yes, directly proportional to rage consumed.

11. Does this healing continue to work if the bear changes form, dies, enters a different phase, etc.?
Dieing or changing form stops any healing you may have been giving, but does not effect the increased health or healing taken buffs on the raid. I have not yet had a chance to test on Ultraxion with phasing.

12. This healing can crit and also benefits from talents and abilities that increase healing taken, correct?
Yes. Whether or not it crits on you is independent from if it crits on other people, crits on you do not heal them for more. Crit rate on 1500 ticks was ~16, near to my raid buffed spell crit.
Thursday - WOL example showing crits and a warlock (Demon armor) and a feral cat (Nurturing Instinct) taking more healing.

Just to confirm what people have been seeing when watching logs, here are one of blizzards Patch 4.3 Hotfixes: December 12:

"The Mass Regeneration effect from the Druid Tier 13 bonus now heals 25% of the healing received by the Druid from Frenzied Regeneration, down from 50%. The tooltip will be updated in a later patch"

Cross-posting this from the cat thread, showing that Nurturing Instinct has no effect on the 4pc.

I had a quick question about mastery and the absorb it should be doing.

Currently I have 1725 mastery which increases my savage defense bubble by 70% add that to the 35% it gives me 105% of my AP.

Currently in game I am only getting roughly 60% of my AP as a bubble. Maybe I am missing out on the scaling or somthing but I just wanted to check.

My current unbuffed AP is 13366
My current Absorb is 7975
Gymclasshero's Savage Defense is refreshed on Gymclasshero. (7975 Remaining)

With my mastery shouldn't this be a 14034 absorb?

Thanks for any help.

Hi everyone! I'm a fairly new player, only been on a couple of raids so far, so forgive me if this has been talked about or is just plain obviously wrong, but I've been wanting to ask: why does Thrash out-prioritize Lacerate in this rotation? If threat is not an issue, which it usually isn't, then you want to optimize your rotation to favor survivability right? Aside from demo roar and CDs, the only thing you can do that affects your survivability at all is to get more crits, and for that lacerate seems like it should outprioritize thrash since:

1) glyphed, it is the only attack you have with an increased crit chance
2) it costs less rage than thrash; more rage efficiency means more mauls, and since mauls are off the gcd, this means more total attacks and hence more chances to get crits

The miniscule increase in damage reduction with the 5% higher crit on lacerate for mastery bubbles is vastly outweighed by the superior dps you do following the rotation.

For example, a bear offtank on Ultraxion is capable of 30k dps, a significant improvement over the other tank classes who usually fall around the 20k dps range. 10k rdps is nothing to sneeze at, even in a 25m raid, and the overall faster kill speed directly reduces the amount of incoming damage to the raid over the fight.

Just because the tank's main role is to absorb damage gracefully, does not mean that there is no point at which any further improvement to survivability is too minimal for what you have to give up to achieve it.

Actually, I think 3 and 4 should be reversed. You always want at least one stack of Lacerate up to proc Mangle. That is how it is modeled in Mew and expressed in my Ovale script. It is also consistent with what Astrylian told me about a year ago when I asked what rotation was being modeled in RAWR.

I would recommend changing the rotation to:

1. Keep Demoralizing Roar up
2. Mangle on cooldown
3. Keep up at least 1 stack of Lacerate
4. Thrash
5. Keep up the Pulverize buff
6. Keep up a 3 stack of Lacerate
7. Faerie Fire
8. Lacerate as a filler
9. Spend excess rage on Maul

(The logic around Lacerate and FF at the end of the script has also been changed.)

Of course, it can get significantly more complex than that. Especially if you want to optimize uptime with Pulverize for mitigation with 2 piece T13. That does, however, lower dps.

Ah, I see. Thanks!

Second question: the priority seems to put getting Mauls off at very low priority (i.e. just spend whatever leftover rage you have on them). However, Maul seems to be a big deal in terms of survivability. Using it off CD increases the raw number of attacks you put out (and hence the the ratio of crits you get) by over 30%, hence it would seem to me that missing a Maul is a bad thing. Thus, rather than optimizing the rotation for thrashes (which is the only special attack that costs more than 15 rage) and spending whatever leftovers you have on maul, shouldn't we be assuming we will maul on CD, and only thrash as much as we can without using too much rage to make us miss a maul?

I understand most of the time our rage income will be enough to do both, but there are situations where you do run low on rage, so in those situations shouldn't the priority be to keep up the mauls rather than the thrashes? For example, you just tank swapped in from dpsing in cat form, so you have only 40 rage. Should you forego a maul at the start so you can afford the thrash? Or should you forego thrash for a bit so you can get an extra maul? The maul is a not insignificant chance to proc a savage defense right out the gate. If this was an emergency swap in, the healers might appreciate that a lot.

Similarly, aside from getting and maintaining the 3-stack, should FFF be on the list at all? That's a whole GCD where you're not using a special attack, and thus one less chance to proc SD. Seems like we should be trying to get out as many attacks as possible.